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The MAC Address Count feature provides a way to notify the switch management system when the number of MAC addresses learned on a switch port exceeds the permitted configurable number.
Operating system, receives SNMP notifications from the network and processes them according to applied configuration. Trap Ringer client, which runs on the same computer as Trap Ringer server, is a regular GUI application that, when started, connects to the server and lets you view and manage received SNMP notifications, as well as control. On Windows, it is usually the SNMP trap service. One way to stop it is to issue 'net stop snmptrap' command. On Linux/UNIX/MAC OS X, if you login as a non-root user and need to run trap receiver at UDP port 162, start MIB browser using the following command: sudo browser.sh. MIB browser can't be started on Linux. The Best Open-Source SNMP Monitoring Tools. The SNMP monitoring tools market is huge. Big players such as SolarWinds, Paessler A.G. And ManageEngine all have some excellent product to offer. But what about open-source tools? Well, there are probably even more open-source tools than there are commercial ones.
To enable the mac-count-notify option, enter this command in global config context.
Syntax
Sends a trap when the number of MAC addresses learned on the specified ports exceeds the configured
<learned-count>
value.To configure the mac-count-notify option on a port or ports, enter this command. When the configured number of MAC addresses is exceeded (the learned-count), a trap is sent.
Syntax
Windows vista home premium product key. [no]
mac-count-notify traps <PORT-LIST> [<learned-count>]
Configures
mac-count-notify traps
on the specified ports (or all) for the entire switch.The
[no]
form of the command disables mac-count-notify traps
.[<learned-count>]
: The number of MAC addresses learned before sending a trap. Values range between 1-128.Default: 32
Example configuring mac-count notify traps on ports 5–7
When enabled, this feature allows the generation of SNMP traps for each MAC address table change. Notifications can be generated for each device that connects to a port and for devices that are connected through another device (daisy-chained.)
The
snmp-server enable traps mac-notify
command globally enables the generation of SNMP trap notifications upon MAC address table changes.Syntax
[no]
snmp-server enable traps mac-notify [mac-move | trap-interval <0- 120>]
Globally enables or disables generation of SNMP trap notifications.
trap-interval | The time interval (in seconds) that trap notifications are sent. A value of zero disables the interval and traps are sent as events occur. If the switch is busy, notifications can be sent prior to the configured interval. Notifications may be dropped in extreme instances and a system warning is logged.The range is 0-120 seconds. Default: 30 seconds. |
mac-move | Configures the switch to capture data for MAC addresses that are moved from one port to another port. The snmp-server enable traps mac-notify command must have been enabled in order for this information to be sent as an SNMP notification. |
Example of trap-interval option
Example of mac-move option
Configuring the mac-notify option at the interface context level
![For For](https://www.manageengine.com/products/mibbrowser-free-tool/images/snmp-mib-browser.jpg)
You can also execute the
mac-notify traps
command from the interface context.Example of the interface context for MAC-notify traps command
Use the following command to configure SNMP traps for learned or removed MAC addresses on a per-port basis.
NOTE: The switch will capture learned or removed events on the selected ports, but will not send an SNMP trap unless mac-notify has been enabled with the snmp-server enable traps mac-notify command. |
Syntax
[no]
mac-notify traps <PORT-LIST>[learned | removed]
When this command is executed without the learned or removed option, it enables or disables the capture of both learned and removed MAC address table changes for the selected ports in
<PORT-LIST>
.Snmp Trap Tool For Mac Os X 10 13 Download
<PORT-LIST> | Configures MAC address table changes capture on the specified ports. Use all to capture changes for all ports on the switch. |
learned | Enables the capture of learned MAC address table changes on the selected ports. |
removed | Enables the capture of removed MAC address table changes table on the selected ports. |
Example of configuring traps on a per-port basis for learned MAC addresses
Example of configuring traps on a port-bases for removed MAC addresses
Use the show mac-count-notify traps [<PORT-LIST>] command to display information about the configured value for sending a trap, the current count, and if a trap has been sent.
Example of information displayed for show mac-count-notify traps
command
The interface context can be used to configure the value for sending a trap.
Example of configuring mac-count-notify traps from the interface context
The
show snmp-server traps
command displays whether the MAC Address Count feature is enabled or disabled.Example of information about SNMP traps, including MAC address count being Enabled/Disabled
Use the
show mac-notify traps
command to display information about SNMP trap configuration for MAC Address Table changes.Syntax
Mac Snmp Browser
Example of information for SNMP trap configuration
Displays SNMP trap information for all ports, or each port in the
<PORT-LIST>
.Snmp Tools For Windows 10
The configured
mac-notify
commands are displayed in the show running-configuration
output.